CN103707595A - Manufacturing method of ultralow-temperature heat-sealing packaging composite film - Google Patents
Manufacturing method of ultralow-temperature heat-sealing packaging composite film Download PDFInfo
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- CN103707595A CN103707595A CN201310691711.3A CN201310691711A CN103707595A CN 103707595 A CN103707595 A CN 103707595A CN 201310691711 A CN201310691711 A CN 201310691711A CN 103707595 A CN103707595 A CN 103707595A
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Abstract
The invention provides a manufacturing method of an ultralow-temperature heat-sealing packaging composite film. According to the manufacturing method, a printing layer and a three-layer co-extrusion ultralow-temperature heat-sealing layer are in dry composite connection through an adhesive. The three-layer co-extrusion ultralow-temperature heat-sealing layer is a three-lay co-extrusion composite film, the inner layer of the three-layer co-extrusion ultralow-temperature heat-sealing layer adopts octane-ethylene metallocene catalytic copolymer (C8) and low-density polyethylene (LDPE), the middle layer of the three-layer co-extrusion ultralow-temperature heat-sealing layer adopts butylene ethylene metallocene catalytic copolymer (C4) and low-density polyethylene (LDPE), and the outer layer of the three-layer co-extrusion ultralow-temperature heat-sealing layer adopts butylene ethylene metallocene catalytic copolymer (C4) and low-density polyethylene (LDPE). The printing layer is a two-way stretch polyamide film or two-way stretch polyester film. The adhesive is a polyester polyurethane adhesive. According to the manufacturing method provided by the invention, a multilayer composite structure is adopted, an outer layer material with relatively high mechanical strength and an inner layer material with relatively good low-temperature heat sealability are effectively combined together to obtain a composite material with excellent comprehensive performance, and the composite material has ultralow heat sealability and is suitable for ultrahigh-speed packaging.
Description
Technical field
The present invention relates to package compound film manufacturing method, be specifically related to a kind of ultra-low temperature heat sealing packaging composite film manufacture method.
Background technology
Along with the development of packaging industry and the raising of the efficiency that comes into force, a lot of bakery and confectionerys are all given up prefabricated packaging bag by automatic packaging machine and are enhanced productivity, automatic packaging machine is different from prefabricated packaging bag, it is without becoming in advance bag, but by a series of process implementations such as automatic moulding, filling, heat-sealings, automatically packs on packing machine.In general, the speed of packing machine is faster, just require to complete packing action within the shorter time, so the heat sealability of packaging film, particularly low-temperature heat-sealing just seems particularly important.Because the speed of packaging for foodstuff is more and more faster, packaging character for packaging film, particularly heat sealability is had higher requirement, and traditional Low Temperature Thermal sealer cannot meet the requirement of Modern food package industry, need to provide a kind of ultra-low temperature heat sealing film to adapt to the demand of ultrahigh speed packing.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of ultra-low temperature heat sealing packaging composite film manufacture method is provided.
Ultra-low temperature heat sealing packaging composite film manufacture method, passes through adhesive dry type composite joint by printed layers and three-layer co-extruded ultra-low temperature heat sealing layer.
Described three-layer co-extruded ultra-low temperature heat sealing layer is a kind of three-layer co-extruded composite membrane, its internal layer adopts octene-ethene metallocene (C8) and low density polyethylene (LDPE) (LDPE), middle level adopts butylene-ethene metallocene (C4) and low density polyethylene (LDPE) (LDPE), outer butylene-ethene metallocene (C4) and the low density polyethylene (LDPE) (LDPE) of adopting.
Described three-layer co-extruded ultra-low temperature heat sealing layer, it is 20% ~ 80% that internal layer adopts the weight fraction of octene-ethene metallocene (C8), the weight fraction of low density polyethylene (LDPE) (LDPE) is 80% ~ 20%; It is 10% ~ 90% that middle level adopts the weight fraction of butylene-ethene metallocene (C4), and the weight fraction of low density polyethylene (LDPE) (LDPE) is 90% ~ 10%; The weight fraction of outer employing butylene-ethene metallocene (C4) is 10% ~ 90%, and the weight fraction of low density polyethylene (LDPE) (LDPE) is 90% ~ 10%.
Described printed layers is two-way stretching polyamide film or biaxially oriented polyester film.
Described adhesive is Polyester polyurethane adhesive.
Beneficial effect of the present invention: the present invention adopts multi-layer compound structure, cladding material and the good inner layer material of low-temperature heat-sealing that mechanical strength is larger effectively combine, can obtain the composite of excellent combination property, there is ultra-low temperature heat sealing performance, be suitable for ultrahigh speed packing.
Accompanying drawing explanation
The structural representation that Fig. 1 is a kind of ultra-low temperature heat sealing packaging composite film of manufacturing by the present invention;
In figure, comprise printed layers 1, three-layer co-extruded ultra-low temperature heat sealing polyethylene layer 2, adhesive phase 3.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of ultra-low temperature heat sealing packaging composite film manufacture method, is by two-way stretching polyamide film printed layers 1 and three-layer co-extruded ultra-low temperature heat sealing polyethylene layer 2, between layer 1 and layer 2, passes through polyester type polyurethane adhesive 3 dry type composite joints.Three-layer co-extruded ultra-low temperature heat sealing polyethylene layer 2 is a kind of three-layer co-extruded composite membranes, and it is 30% that its internal layer adopts the weight fraction of octene-ethene metallocene (C8), and the weight fraction of low density polyethylene (LDPE) is 70%; It is 50% that middle level adopts the weight fraction of butylene-ethene metallocene (C4), and the weight fraction of low density polyethylene (LDPE) is 50%; Outer butylene-ethene the metallocene (C4) 50% that adopts, the weight fraction of low density polyethylene (LDPE) is 50%.
As shown in Figure 1, a kind of ultra-low temperature heat sealing packaging composite film manufacture method, is by biaxially oriented polyester film printed layers 1, and three-layer co-extruded ultra-low temperature heat sealing polyethylene layer 2 passes through polyester type polyurethane adhesive 3 dry type composite joints between layer 1 and layer 2.Three-layer co-extruded ultra-low temperature heat sealing polyethylene layer 2 is a kind of three-layer co-extruded composite membranes, and it is 60% that its internal layer adopts the weight fraction of octene-ethene metallocene (C8), and the weight fraction of low density polyethylene (LDPE) is 40%; It is 25% that middle level adopts the weight fraction of butylene-ethene metallocene (C4), and the weight fraction of low density polyethylene (LDPE) is 75%; Outer butylene-ethene the metallocene (C4) 75% that adopts, the weight fraction of low density polyethylene (LDPE) is 25%.
Claims (5)
1. a ultra-low temperature heat sealing packaging composite film manufacture method, is characterized in that, printed layers (1) and three-layer co-extruded ultra-low temperature heat sealing layer (2) are passed through to adhesive (3) dry type composite joint.
2. method according to claim 1, it is characterized in that: described three-layer co-extruded ultra-low temperature heat sealing layer (2) is a kind of three-layer co-extruded composite membrane, its internal layer adopts octene-ethene metallocene (C8) and low density polyethylene (LDPE) (LDPE), middle level adopts butylene-ethene metallocene (C4) and low density polyethylene (LDPE) (LDPE), outer butylene-ethene metallocene (C4) and the low density polyethylene (LDPE) (LDPE) of adopting.
3. method according to claim 2, it is characterized in that: described three-layer co-extruded ultra-low temperature heat sealing layer, it is 20% ~ 80% that internal layer adopts the weight fraction of octene-ethene metallocene (C8), and the weight fraction of low density polyethylene (LDPE) (LDPE) is 80% ~ 20%; It is 10% ~ 90% that middle level adopts the weight fraction of butylene-ethene metallocene (C4), and the weight fraction of low density polyethylene (LDPE) (LDPE) is 90% ~ 10%; The weight fraction of outer employing butylene-ethene metallocene (C4) is 10% ~ 90%, and the weight fraction of low density polyethylene (LDPE) (LDPE) is 90% ~ 10%.
4. method according to claim 1, is characterized in that: described printed layers (1) is two-way stretching polyamide film or biaxially oriented polyester film.
5. a kind of ultra-low temperature heat sealing packaging composite film manufacture method according to claim 1, is characterized in that: described adhesive (3) is Polyester polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691711.3A CN103707595A (en) | 2013-12-17 | 2013-12-17 | Manufacturing method of ultralow-temperature heat-sealing packaging composite film |
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| CN201310691711.3A CN103707595A (en) | 2013-12-17 | 2013-12-17 | Manufacturing method of ultralow-temperature heat-sealing packaging composite film |
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| CN103707595A true CN103707595A (en) | 2014-04-09 |
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| CN201310691711.3A Pending CN103707595A (en) | 2013-12-17 | 2013-12-17 | Manufacturing method of ultralow-temperature heat-sealing packaging composite film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016724A (en) * | 2017-11-10 | 2018-05-11 | 安徽省方舟九社包装有限公司 | A kind of processing method of low temperature 40 degrees below zero fresh-keeping packaging bag |
| CN108359170A (en) * | 2018-02-26 | 2018-08-03 | 云南名博包装印刷有限公司 | A kind of multi-layer co-extruded polyethylene film and preparation method thereof |
| CN110654087A (en) * | 2019-09-26 | 2020-01-07 | 珠海市德燊环保包装有限公司 | Automatic hot sauce filling low-temperature heat-sealing composite film and preparation method thereof |
| CN110834451A (en) * | 2019-10-24 | 2020-02-25 | 上海若祎新材料科技有限公司 | Polyethylene film composition, polyethylene film and composite film and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016724A (en) * | 2017-11-10 | 2018-05-11 | 安徽省方舟九社包装有限公司 | A kind of processing method of low temperature 40 degrees below zero fresh-keeping packaging bag |
| CN108359170A (en) * | 2018-02-26 | 2018-08-03 | 云南名博包装印刷有限公司 | A kind of multi-layer co-extruded polyethylene film and preparation method thereof |
| CN110654087A (en) * | 2019-09-26 | 2020-01-07 | 珠海市德燊环保包装有限公司 | Automatic hot sauce filling low-temperature heat-sealing composite film and preparation method thereof |
| CN110834451A (en) * | 2019-10-24 | 2020-02-25 | 上海若祎新材料科技有限公司 | Polyethylene film composition, polyethylene film and composite film and application thereof |
| CN110834451B (en) * | 2019-10-24 | 2020-09-08 | 上海若祎新材料科技有限公司 | Biaxially oriented polyethylene film BOPE composition, biaxially oriented polyethylene film and composite film and application thereof |
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Application publication date: 20140409 |